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3.3V to 5.5V input (500mA max) charging 4.4mF super cap (3.3V at 800mA) and providing 1.8V at 400mA

3.3V to 5.5V input (500mA max) charging 4.4mF super cap (3.3V at 800mA) and providing 1.8V at 400mA

The LTC3619 is a Dual 400mA/800mA monolithic synchronous buck regulator with an input supply voltage range is 2.5V to 5.5V, making it ideal for Li-Ion and USB powered applications